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Continue to ChatBSNL to launch New 1GB 3G Data STV 78, Reduces the validity of existing 3G Data STV 68 to 3 days with effect from 20th October 2015 onwards on PAN India basis https://www.keralatelecom.info/2015/10/bsnl-new-1gb-3g-2g-data-stv-78-reduces-validity-of-data-stv-68-3days.html